Mary Reid is a human resident of a unknown district and the daughter of "Madame".
Mary was Reid was killed by Jonathan E. Reid. Following her death, she was buried in a quarantined graveyard outside of the whitechapel district. Her mother and their manservant, Avery, attended while Father Joseph oversaw her burial. After the funeral proceedings were completed, Reid visited Father Joseph at the Saint Mary's Church, where he openly admitted that he was responsible for her death.